Molekula
Tetrabutylammonium hydroxide 40% in methanol
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Tetrabutylammonium hydroxide 40% in methanol is a quaternary ammonium compound widely used as a phase-transfer catalyst in organic synthesis, as well as in analytical chemistry for ion pairing and extraction processes. It is a clear, colorless solution with strong basic properties. This product has a CAS number of 2052-49-5, with the molecular formula C16H37NO and a molecular weight of 259.47. It is stored at ambient conditions and carries a Signal Word of Danger due to its hazardous nature. Molekula supplies Tetrabutylammonium hydroxide 40% in methanol from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
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500 mL — £184.00 per pack ex VAT · £220.80 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | Colourless or light yellow liquid |
| Colour (Pt-Co) | ≤80 |
| Identification | Conforms to reference |
| Assay | 40 ± 0.5% |
| Potassium (K) | ≤1.0% |
| Sodium (Na) | ≤0.1% |
| Bromine (Br) | ≤0.8% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 12 °C |
| Transport Class | 3 (6.1, 8) |
| Packing Group | II |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 90027132 |
| CAS Number | 2052-49-5 |
| IUPAC Name | tetrabutylazanium hydroxide |
| EC Number | 218-147-6 |
| Molecular Formula | C16H37NO |
| Molecular Weight | 259.47 |
| Exact Mass | 259.2875 |
| SMILES | CCCC[N+](CCCC)(CCCC)CCCC.[OH-] |
| InChIKey | VDZOOKBUILJEDG-UHFFFAOYSA-M |
| InChI | InChI=1S/C16H36N.H2O/c1-5-9-13-17(14-10-6-2,15-11-7-3)16-12-8-4;/h5-16H2,1-4H3;1H2/q+1;/p-1 |
| PubChem CID | 2723671 |
| UN Number | UN3286 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| Tariff Code | 3815909090 |
Safety & GHS
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Flammable
GHS02
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Corrosive
GHS05
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Toxic
GHS06
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Serious Health Hazard
GHS08
Hazard statements
- H225 Highly flammable liquid and vapour
- H301 + H311 + H331 Toxic if swallowed, in contact with skin or if inhaled
- H314 Causes severe skin burns and eye damage
- H370 Causes damage to organs
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+330 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
- P310 Immediately call a POISON CENTER or doctor/physician
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 1-Butanaminium, N,N,N-tributyl-, hydroxide
- 1-Butanaminium, N,N,N-tributyl-, hydroxide (1:1)
- Ammonium, tetrabutyl-, hydroxide
- N,N,N-Tributyl-1-butanaminium hydroxide
- TBAH
- Tetra-n-butylammonium hydroxide
- Tetrabutylammonium Hydroxide (1.0M in Methanol)
- Tetrabutylammonium hydroxide; Tetra-n-butylammonium hydroxide
- tetrabutylammonium oxide
- tetrabutylazanium;hydroxide
Frequently asked questions
What is tetrabutylammonium hydroxide (40% in methanol) commonly used for?
This product is primarily used as a phase-transfer catalyst in organic synthesis, as a reagent in polymer chemistry, and in analytical chemistry for ion-pair extraction.
What is the chemical formula and molecular weight of this compound?
The formula is **C₁₆H₃₇NO** (40% solution in methanol), and the molecular weight of the pure compound is **259.47 g/mol**.
How should tetrabutylammonium hydroxide (40% in methanol) be stored?
Store at **ambient temperature** in a tightly sealed container, away from moisture, oxidizing agents, and incompatible materials like strong acids.
What grade or purity is available for this product?
Molekula supplies this as a **technical-grade reagent (40% w/w in methanol)**, suitable for industrial and research applications requiring high purity.
Can Molekula supply this product in bulk quantities?
Yes, we offer **bulk packaging options** (e.g., drums or IBCs) for large-volume orders—please contact our sales team for pricing and lead times.
What documentation is provided with an order of this chemical?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS/SDS)**, and **batch-specific documentation** for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.